Olympus Optical Company, Ltd.

Honda Motor Co., Ltd.

Oyabe Seiki Co., Ltd

Shinya Matsuyama

Satoshi Tanaka

Haruhisa Watanabe

Yuta Suzuki

Toshihiko Matsumoto

Masanao Suzuki

Keita Sembu

Susumu Nishimoto

Ryoji Tamai

Hiromitsu Kato

A centering device for a plate-shaped workpiece comprises: a table () having a conveyor mechanism () for conveying a plate-shaped workpiece () in the horizontal direction; a camera () for taking an image of the plate-shaped workpiece () placed on the table (); a table movement mechanism () for moving the table () horizontally in the direction orthogonal to the conveyance direction; a table rotation mechanism () for rotating the table () about a vertical axis; a computation unit () for comparing target central position information and information acquired by the camera () and computing the movement amount of the conveyor mechanism (), the movement amount of the table movement mechanism (), and the movement amount of the table rotation mechanism (); and a control unit () for controlling the conveyor mechanism (), the table movement mechanism (), and the table rotation mechanism () on the basis of the movement amounts calculated by the computation unit ().

Centering device for plate-shaped workpiece

Particle pattern judging method in which a particle pattern formed on the bottom surface of a reaction vessel by an immunological agglutinated reaction is measured in an optical manner; a variation ratio of light intensity of the border of the particle pattern is obtained and the particle pattern is judged whether it is agglutinated or not on the basis of the variation ratio: or a two-dimensional image of the particle pattern is picked up; the two-dimensional image of the particle pattern is differentiated to obtain differentiated values concerning pixel compositions consisting of the particle pattern; and the particle pattern is judged whether it is agglutinated or not on the basis of a distribution of the thus obtained differentiated values. By the method according to the invention, it is possible to judge whether the particle pattern is agglutinated or not in an exact manner, even when bubbles are included in the particle pattern, or the particle pattern is destroyed, or the particle pattern is torn or the agglutinating force of the particle pattern is weak.

Particle pattern judging method

Automatic particle pattern judging method, in which particles to be tested, such as blood cell particles, are delivered into not only a reaction vessel but also a reference vessel, and an amount of the particles delivered into the reference vessel is measured and a judgement whether the particle pattern formed in the reaction vessel is agglutinated or not is conducted by correcting values of a reaction liquid contained in the reaction vessel concerning parameters for the judgement or correcting threshold values, with which the values of the test liquid concerning the parameters should be compared in accordance with the amount of the particles delivered into the reference vessel. Therefore, by the method according to the invention, even when the amount of particles to be tested delivered into the reaction vessel is varied for some reason, it is possible to judge correctly whether the particle pattern is agglutinated or not.

Automatic blood cell particle pattern judging method

A method for detecting and measuring the image of an agglutination particle pattern produced in a test liquid in which the existence of hemolysis in a test liquid is judged at the same time as an analysis is conducted of particle patterns produced in the test liquid in response to an immunological agglutination reaction. By this method, it is possible to increase the precision of the analysis of the particle pattern by feeding back the result of the judgement of the existence of hemolysis in the test liquid. A reaction apparatus suitable for use in the method according to the invention is also disclosed. In this apparatus, a plurality of wells for containing the test liquid are formed, and a plurality of marks are formed in positions where the marks can be read through the test liquid by an optical system for detecting the particle patterns produced in the test liquid. Therefore, hemolysis existing in the test liquid can be objectively judged.

Method for automatic chemical analyzing

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Tokyo, Japan

Shinya Matsuyama